243 



inter Trematodontem Hildcbrandti rarus: J. M. Hilde- 

 brandt Junio - Aug. 1875. Coll. No. 1812. 



A priore foliis crispulis, areolatione basilari elongata 

 laxa et suprema quad rata incrassata minuta, pedunculis 

 elongatis, tbeca multo longiore, operculo e basi conica di- 

 stincta robustius rostrato, annulo robustiore, peristomio 

 persistente robustiore et dentium firma longe diversus, 

 magis Tr. ambiguum referens, sed magis ad species Indi- 

 cas Himalayanas aceedens. — Plantae masculae ereberri- 

 mae inter eespitulum femineurn interspersae, robustiusculae 

 breves simplices vel ramulis brevissimis appressis divisae, 

 foliis perigonialibus e basi lata convoluta tenera pellncida 

 subito vel sensim in subulam latiusculam obtusatam vel 

 acutiorem attennatis; antheridiis angustis longiusculis. 



Trib. V. Bryaceae* 



13. Bryum (Platyphyllum — Rliodobryum) laxi- 

 roseam n. sp.; Bryo Commersoni babitu simillimum, catt- 

 le pollicari foliis latissimis apice surculi in rosulam maxime 

 apertam intense chloropbyllosam siecitate obscure viridem 

 congestis, e basi brevi angustiore latissime ovata brevis- 

 sime acuminata, nervo validissimo in acumen pungens 

 excurrente carinata, margine haud limbato supra basin 

 usque ad acumen sensim grosse et dilute roseo - dentata, 

 e cellulis magnis chloropbyllo omnino repletis viridissimis 

 reticulata. Caetera ignota. 



Patria. Comoro-insula Johanna, 1100 met. supra mare, 

 in solo sylvae umbrosae rarum: J. M. Hildebrandt 1875. 

 Coll. No, 1847. 



Br* Commersoni Borboniae foliis longe ciliatis toto 

 coelo jam recedit; Br 9 Umhraculum Capense folia margi- 



18* 



